"On the 16th of September the right eye was couched. The light was so distressing to his eye that the lids were closed as soon as it was over. The eyes were not examined with respect to their vision till the 13th of October; the boy remained quiet in the hospital. On this day he could discern a white, red, or yellow color, particularly when bright and shining. The sun and other objects did not now seem to touch his eyes as before, they appeared to be at a short distance from him. The right eye had the most distinct vision, but in both it was imperfect. The distance at which he saw best was five inches. When the object was of a bright color, and illuminated by a strong light, he could make out that it was flat and broad; and when one corner of a square substance was pointed out to him, he saw it, and could find out the other, which was at the end of the same side, but could not do this under less favorable circumstances. When the four corners of a white card were pointed out, and he had examined them, he seemed to know them; but when the opposite surface of the same card, which was yellow, was placed before him, he could not tell whether it had corners or not, so that he had not acquired any correct knowledge of them, since he could not apply it to the next colored surface, whose form was exactly the same with that, the outline of which the eye had just been taught to trace.... "2. John Salter, seven years of age, was admitted into St. George's Hospital on the 1st of October, 1806, with cataracts in both eyes, which, according to the accounts of his relations, had existed from his birth. The pupils contracted considerably when a lighted candle was placed before him, and dilated as soon as it was withdrawn. He was capable of distinguishing colors with tolerable accuracy, particularly the more bright and vivid ones. On the 6th of October the left eye was couched. The eye was allowed ten minutes to recover itself; a round piece of card, of a yellow color, one inch in diameter, was then placed about six inches from it. He said immediately that it was yellow, and, on being asked its shape, said, 'Let me touch it, and I will tell you.' Being told that he must not touch it, after looking for some time, he said it was round. A square, blue card, nearly the same size, being put before him, he said it was blue and round. A triangular piece he also called round. The different colors of the objects placed before him he instantly decided on with great correctness, but had no idea of their form. He saw best at a distance of six or seven inches. He was asked whether the object seemed to touch his eye; he said, 'No,' but when desired to say at what distance it was, he could not tell. The eye was covered, and he was put to bed and told to